I have hydronic floors and A/C too. I wanted the floors to be the heat source for efficiency, comfort and the ability to use solar heat stored geothermally. You can't cool building surfaces for AC this way because of the condensation. Vapor compression is the easiest efficient way to get cooling. Wanted air filtration too, so this means forced air. Since the heatpump version of my equipment is 20 SEER instead of 23 for the straight cool and I wanted the bulk of heat to come from the floors, I chose the cheaper straight cool version.
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"I‘d put my money on the sun and solar energy. What a source of power! I hope we don‘t have to
wait until oil and coal run out before we tackle that." Thomas Edison, 1847 — 1931
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